Technological Options for DSWM Treatment

There are a number of technologies such as recycling of waste, pit composting, vermicomposting and small scale anaerobic digestion (Bio-Gas) available for decentralized solid waste management. The selection of suitable technologies in the Indian context depends on various factors such as climate, techno-economic viability and size of the cities. The important parameters which are generally considered for suitability are quantity of waste generation, land availability, environmental sensitivity to locations, capital investment, costrecovery, etc. The high moisture content, low calorific value, substantially high contents of nitrogen, phosphorous and potassium in Solid Waste samples indicate that the vegetative fractions of waste are more suitable for composting to organic manure after separating the reusable and recyclable fractions. The inert, non-biogradable residue left after composting could be disposed of using sanitary landfill.